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IBM A2090-730 Exam Syllabus Topics:

IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

1. A table was created using the following DDL:
CREATE TABLE employee
(id SMALLINT NOT NULL,
name VARCHAR(9),
dept SMALLINT CHECK (dept BETWEEN 10 AND 100),
job CHAR(10) CHECK (job IN ('Sales','Mgr','Clerk')),
hiredate DATE,
salary DECIMAL(7,2),
comm DECIMAL(7,2),
PRIMARY KEY (id),
CONSTRAINT yearsal CHECK (YEAR(hiredate) > 2004 OR salary > 80500)
);
Which of the following INSERT statements will fail?

A) INSERT INTO employee VALUES (2, 'Smith', 80, 'Mgr', '09/03/2006', 80000, NULL)
B) INSERT INTO employee VALUES (3, 'Smith', 33, 'Analyst', '11/26/2006', 90000, NULL)
C) INSERT INTO employee VALUES (4, 'Smith', 86, 'Mgr', '07/14/2003', 90000, NULL)
D) INSERT INTO employee VALUES (1, 'Smith', 55, 'Sales', '07/14/2003', NULL, NULL)

2. Which of the following DB2 UDB isolation levels will only lock rows during read processing if another transaction tries to drop the table the rows are being read from?

A) Read Stability
B) Repeatable Read
C) Cursor Stability
D) Uncommitted Read

3. Which of the following CANNOT be used to restrict specific values from being inserted into a column in a particular table?

A) Default constraint
B) Index
C) Referential constraint
D) Check constraint

4. Which of the following is a NOT a valid reason for defining a view on a table?

A) Ensure that rows inserted remain within the scope of a definition
B) Restrict users' access to a subset of table data
C) Provide users with an alternate view of table data
D) Produce an action as a result of a change to a table

5. Given the following tables:
TABLEA
EMPIDNAME
1 USER1 2 USER2
TABLEB
EMPID WEEKNO PAYAMT
1 1 1000.00
1 2 1000.00
2 1 2000.00
and the fact that TABLEB was defined as follows:
CREATE TABLE tableb (empid SMALLINT,
weekno SMALLINT,
payamt DECIMAL(6,2),
CONSTRAINT const1 FOREIGN KEY (empid)
REFERENCES tablea(empid)
ON DELETE NO ACTION)
If the following command is issued:
DELETE FROM tablea WHERE empid=2
How many rows will be deleted from TABLEA and TABLEB?

A) TABLEA - 1, TABLEB - 1
B) TABLEA - 0, TABLEB - 0
C) TABLEA - 0, TABLEB - 1
D) TABLEA - 1, TABLEB - 0

Solutions: